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CHICAGO-LATROBE 1/4"-20 UNC General Purpose Spiral-Point Tap - General Purpose Spiral-Point Taps
CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE 1/4"-20 UNC General Purpose Spiral-Point Tap

The CHICAGO-LATROBE Spiral Point Tap (MPN 282355) is a 1/4"-20 UNC general purpose spiral-point tap with an H5 / 2B-3B tolerance, 3-flute design, plug chamfer, and high-speed steel construction. 3G Electric…

SKU 3G-OTH-214591

Brand
CHICAGO-LATROBE
Item
1/4"-20 UNC General Purpose Spiral-Point Tap
Category
General Purpose Spiral-Point Taps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
282355
Type
H5 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
3

Technical Documents

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Spiral Point Tap (MPN 282355) is a 1/4"-20 UNC general purpose spiral-point tap with an H5 / 2B-3B tolerance, 3-flute design, plug chamfer, and high-speed steel construction. 3G Electric interprets demand and delivers this tap across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as an authorised distributor for brands like FBR, Interpump, and others.

Frequently Asked Questions

What is the CHICAGO-LATROBE Spiral Point Tap used for?

The CHICAGO-LATROBE Spiral Point Tap is used for threading blind holes in production environments. Its spiral-point design pushes chips forward, preventing clogging, making it ideal for through-hole tapping in steel, aluminum, and other ferrous/non-ferrous materials.

What are the specifications of the CHICAGO-LATROBE Spiral Point Tap?

This tap has a 1/4"-20 UNC thread, H5 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is made of high-speed steel (HSS) and is designed for general-purpose tapping. The manufacturer part number is 282355.

Where to buy the CHICAGO-LATROBE Spiral Point Tap worldwide?

You can source the CHICAGO-LATROBE Spiral Point Tap through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct tap for your threading application.

How to select the correct CHICAGO-LATROBE Spiral Point Tap?

Select the tap based on thread size (1/4"-20 UNC), tolerance class (H5 for 2B-3B fit), and material. For blind holes, a spiral-point tap like this CHICAGO-LATROBE model pushes chips forward. Ensure the tap matches your hole depth and machine type for optimal thread quality.

Used in

Common applications for CHICAGO-LATROBE
Aerospace assembly — Chicago-Latrobe NAS 907 Type B aircraft-extension drill bits for drilling fastener holes in aluminum and titanium skins.
Metal fabrication — Chicago-Latrobe reduced-shank drill bit sets for enlarging holes in structural steel using magnetic drill presses.
Maintenance repair — Chicago-Latrobe left-hand cobalt jobber-length drill bits for removing broken bolts in machinery.
Tool and die making — Chicago-Latrobe jobber-length drill bit sets with 135° split point for precision hole drilling in hardened steels.
Automotive repair — Chicago-Latrobe spiral-flute screw extractors for removing seized fasteners in engine blocks or exhaust systems.
General manufacturing — Chicago-Latrobe HSS jobber-length drill bits for production drilling in mild steel and cast iron.

CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 282306)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 282306)
General purpose spiral-point tap for through-hole threading. Made from high speed steel with 3 flutes and plug chamfer. Thread size 1/4"-28 UNF, tolerance H3 / 2B. Suitable for production tapping in steel and aluminum
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General purpose spiral-point tap for through-hole threading. Made from high speed steel with 3 flutes and plug chamfer. Thread size 1/4"-28 UNF, tolerance H3 / 2B. Suitable for production tapping in steel and aluminum
This spiral-point tap is designed for threading through-holes in metal, steel, and alloys. The spiral-point design pushes chips forward, preventing clogging during operation. It features a plug chamfer, 3 flutes, and is made from high-speed steel with H3 / 2B tolerance. Suitable for general manufacturing applications requiring clean, accurate UNF threads
CHICAGO-LATROBE
This spiral-point tap is designed for threading through-holes in metal, steel, and alloys. The spiral-point design pushes chips forward, preventing clogging during operation. It features a plug chamfer, 3 flutes, and is made from high-speed steel with H3 / 2B tolerance. Suitable for general manufacturing applications requiring clean, accurate UNF threads
CHICAGO-LATROBE Spiral Point Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 282470)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 5/16"-18 UNC, H5 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 282470)
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a 5/16"-18 UNC thread size, H3 / 2B tolerance, plug chamfer, and 3-flute design. Constructed from high-speed steel, it is suitable for general-purpose tapping applications where chip evacuation is critical
CHICAGO-LATROBE
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a 5/16"-18 UNC thread size, H3 / 2B tolerance, plug chamfer, and 3-flute design. Constructed from high-speed steel, it is suitable for general-purpose tapping applications where chip evacuation is critical
General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a spiral-point design that pushes chips forward to reduce clogging during production tapping. Made from high-speed steel with H3 / 2B tolerance, plug chamfer, and 3 flutes. Suitable for applications requiring UNF threads
CHICAGO-LATROBE
General purpose spiral-point tap for threading blind or through holes in ferrous and non-ferrous materials. Features a spiral-point design that pushes chips forward to reduce clogging during production tapping. Made from high-speed steel with H3 / 2B tolerance, plug chamfer, and 3 flutes. Suitable for applications requiring UNF threads

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This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a plug chamfer and H2 / 2B tolerance for general-purpose applications. Made from high-speed steel with 2 flutes, it pushes chips forward for clean thread formation
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This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. It features a plug chamfer and H2 / 2B tolerance for general-purpose applications. Made from high-speed steel with 2 flutes, it pushes chips forward for clean thread formation
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This spiral-point tap is designed for threading blind or through holes in materials such as steel, aluminum, and cast iron. The spiral-point design pushes chips ahead, facilitating production tapping. It features a 1/4"-28 UNF thread size, H2 / 2B tolerance, plug chamfer, 3 flutes, and is made from high-speed steel
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This spiral-point tap is designed for threading blind or through holes in materials such as steel, aluminum, and cast iron. The spiral-point design pushes chips ahead, facilitating production tapping. It features a 1/4"-28 UNF thread size, H2 / 2B tolerance, plug chamfer, 3 flutes, and is made from high-speed steel
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